import { app, shell, BrowserWindow, ipcMain } from 'electron'
import { join } from 'path'
import { electronApp, optimizer, is } from '@electron-toolkit/utils'
import icon from '../../resources/icon.png?asset'
const { readFile, writeFile, appendFile } = require('node:fs/promises')
const { resolve } = require('node:path')
const fs = require('fs')
const path = require('path')

function createWindow() {
  // Create the browser window.
  const mainWindow = new BrowserWindow({
    width: 1440,
    height: 900,
    show: false,
    autoHideMenuBar: true,
    // fullscreen: true,
    // contextIsolated: true,
    ...(process.platform === 'linux' ? { icon } : {}),
    webPreferences: {
      preload: join(__dirname, '../preload/index.js'),
      sandbox: false
    }
  })

  mainWindow.on('ready-to-show', () => {
    mainWindow.show()
  })

  mainWindow.webContents.setWindowOpenHandler((details) => {
    shell.openExternal(details.url)
    return { action: 'deny' }
  })

  // HMR for renderer base on electron-vite cli.
  // Load the remote URL for development or the local html file for production.
  if (is.dev && process.env['ELECTRON_RENDERER_URL']) {
    mainWindow.loadURL(process.env['ELECTRON_RENDERER_URL'])
  } else {
    mainWindow.loadFile(join(__dirname, '../renderer/index.html'))
  }
  // mainWindow.webContents.openDevTools()
}

// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
// Some APIs can only be used after this event occurs.
app.whenReady().then(() => {
  const exePath = app.getPath('exe')
  const installDir = path.dirname(exePath)
  // 判断data文件夹是否存在，不存在则创建
  const dataDir = is.dev ? resolve(__dirname, '../../data') : join(installDir, '/data')
  if (!fs.existsSync(dataDir)) {
    fs.mkdirSync(dataDir)
  }
  // Set app user model id for windows
  electronApp.setAppUserModelId('com.electron')

  // Default open or close DevTools by F12 in development
  // and ignore CommandOrControl + R in production.
  // see https://github.com/alex8088/electron-toolkit/tree/master/packages/utils
  app.on('browser-window-created', (_, window) => {
    optimizer.watchWindowShortcuts(window)
  })

  // IPC test
  ipcMain.on('ping', () => console.log('pong'))

  ipcMain.handle('readFile', async (event, path) => {
    const filePath = join(dataDir, path)
    try {
      const res = await readFile(filePath, { encoding: 'utf8' })
      return Promise.resolve({ type: 'success', res })
    } catch (error) {
      if (error.code === 'ENOENT') {
        const defaultData = []
        try {
          const fileCreateRes = await writeFile(
            filePath,
            path === '/user.json' ? JSON.stringify(defaultData, null, 2) : '',
            'utf8'
          )
          console.log(fileCreateRes)
          return Promise.resolve({ type: 'create', res: '文件创建成功' })
        } catch (err) {
          console.log(err)
          return Promise.reject('文件创建失败')
        }
      }
      return Promise.reject(error)
    }
  })
  ipcMain.handle('saveUserList', async (event, userList) => {
    const jsonStr = JSON.stringify(userList)
    const filePath = join(dataDir, '/user.json')
    try {
      const res = await writeFile(filePath, jsonStr, 'utf8')
      console.log(res)
      return Promise.resolve('数据保存成功')
    } catch (err) {
      console.log(err)
      return Promise.reject('数据保存失败')
    }
  })
  ipcMain.handle('addBillRecord', async (event, billRecord) => {
    const jsonStr = JSON.stringify(billRecord)
    const filePath = join(dataDir, '/bill.json')
    try {
      const res = await appendFile(filePath, jsonStr + ',', 'utf8')
      console.log(res)
      return Promise.resolve('数据保存成功')
    } catch (err) {
      console.log(err)
      return Promise.reject('数据保存失败')
    }
  })

  createWindow()

  app.on('activate', function () {
    // On macOS it's common to re-create a window in the app when the
    // dock icon is clicked and there are no other windows open.
    if (BrowserWindow.getAllWindows().length === 0) createWindow()
  })
})

// Quit when all windows are closed, except on macOS. There, it's common
// for applications and their menu bar to stay active until the user quits
// explicitly with Cmd + Q.
app.on('window-all-closed', () => {
  if (process.platform !== 'darwin') {
    app.quit()
  }
})

// In this file you can include the rest of your app's specific main process
// code. You can also put them in separate files and require them here.
